Implement for depositing cores



April 6 1926.

' J. F. HUTCHINGS IMPLEMENT FOR DEPOSITING CORES Fjiled Oct. 15, 1925Fla. 5.

Patented Apr. 1926.

[UNITED STATES OFFICE;

' r aofinnnomonrlves, or EATON, INDIANA.

\ mums-Em!" r03 nnro srmme corms.

Application flledflctober 15, 1925. serial m. 62,554-' ing Cores, andofwhichsaid invention the following is a specification. I

This invention relates to improvements in devices for forming moldsforthe of sash-weightSJ A method heretofore used for prep arin'g moldsof the class referred to, involves the use of a bottom plate withupstanding projections which are intended to form the: eye of the mold,a flask,'and a; templet plate placed on top of the flask, andthrough'which said plate the Vertically disposed cylindrical patternsare plunged to lowered position in the loose sand. After the sand hasbeen rammed to a depth sufiicient to hold the patterns firmlyinposition, the templet plate is removed, and then'additionalsandis'ra'mmed to form the top'portion of the mold. A second flask-isthen placed on top of the main flask and is rammed with sandand providedwith runners or gates adapted to receive themolten metal. i

Another'known method, consists of placing a templet plate onthesurface-of the sand in the flask and forming a central basin 7 andradial gates therefrom, passing a plurality of patterns having taperedends through'the aperturesin said templet plate and plunging them intothe sand 2. suitable depth, then withdrawing said patterns and removingthe templet plate', and finally, the positioning of cores in the moldsto form the sash-weight eyes. l

The sash-weight of form made in molds of the class above referred to hasbecome standard, and consists simply of a cylindriv cal casting aboutone and three quarters of an inch in diameter, and of length to ac cordwith the'heaviness desired, the end of the casting beingprovided with aneye."

I maware that aj sash weight of the same formation as that justdescribed, has been produced in the standard type of mold consisting'ofthe copev and drag flask, andj the match plate, the parting line beinglengthwise of the casting. This form of mold, however, even though notrequiring a core, times ma lend i lfi q antity p du tioa,

F. HUTCHINGS,

drawings, and described in the specification;

as does the mold of the vertical or plunger type. I

The general-objectof the present invention is to render practicable morerapid and.

economical construction of sash-weights by means of molds of thevertical type hereinbefore referred to, and to minimize the amountwofwork and labor necessary to make such mold or molds 1n read ness forreceiving the molten metal. Accordingly,

mold, such implement consisting of a hollow or open body member capableofbeing pro jected into and retracted from the mold,

' there being a central recessin its lowerend, a grlp device carriedbysa-idbody member,

adapted to retain and hold the core while it is being lowered to anddepositedin position in the eye portion of the mold, and

' then to release its hold. v

A, practicable form of embodiment of. my.

invention is shown in, and the objects of I the invention. areaccomplished by the" new construction, combination and arrangement ofparts illustrated in the accompanying following The several parts of theinvention are identified by suitable characters of reference appliedthereto in the different views, in the drawings, in which- 1 k Figure 1is a vertical central sectional view of my improved implement, the gripdevice being shown retained by the holder means, at the normallyexpanded or open position. I s

Figure 2 is a view similar to Figure 1, the holder means having beenmoved, thus permitting-the grip device to become retracted.

Figure 3 is a top plan view of Figure 1. Figure A: is a topfplan view ofFigure 2. Figure 5 isv aside view of the lower portion of the hollowcolumn or body member.

9*? in Figu e a this is not objectionable and constitutes no at thelocation where the core is impinged,

intended solely for a sash-weight, it is under- I stood that theinvention is applicable in connection with the production of castings ofall forms capable of being formed in the plunger type of vertical molddescribed. Also it will be understood that modifications may be made inthe details of construction, of the combination and arrangement of partsof my invention, without departing from its spirit or principles.

What I claim as my invention, and desire to secure by Letters Patent ofthe United States, is-

1. An implement for depositing cores in molds, comprising a hollowcolumn adapted to be projected into the mold and having bifurcate lowerend adapted to embrace a core, a grip device having a jaw on each sideof the bifurcation, means to urge the jaws closed, means to retain thejaws normally I open, and operable .to permit the jaws to close.

2. An implement for depositing cores'in molds, comprising a body memberadapted to be projected into the mold and having a slot in its end toembrace a core, a grip device havinga jaw on each side of the slot,means to yieldingly urge thejaws closed, means to retain the jawsnormally open and operable to permit the jaws to close.

3. Any implement for depositing cores in molds, comprising a hollowcolumn adapted to beprojected into the mold and having an opening inits'end to embrace a core, a grip device in the column having a jaw oneach side of said'opening, means to yieldingly 1 urge the jaws closed,av push rod to move j the jaws to open position, and a holder memher tohold the push rod at the pushed-in position. 7

4. An implement for depositing cores in molds, comprising ahollow bodymember adapted to be projected into the mold'and having an opening inits end toembrace a core, a grip device in said body member having a jawon each side of the said opening,

a spring to urgethe jaws toward each other, an opener member operable toresist the spring and move the jaws apart, and a holder member to holdthe opener member at the operate'd'p'osition. v

5. An implement for depositing cores in molds, comprising ahollowcolum'n adapted to'be projected into the mold and having anopening in its end adapted to embrace a .core, a grip device in thecolumn having a jaw on each side of the column, a push rod loose inandprojected from the column and having connection with the grip device so"that when pushed the grip device operates to move the jaws apart, and aholder means on the column operable to engage and hold the push rod. atthe pushed-in position.

JOHN F. HUTCHINGS.

